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Machining Process FAQs

The right answers matched to each process

Company
Strength
20 Years of Experience
20 Years of Experience
72 Sets of CNC Machines
72 Sets of CNC Machines
Precision: ±0.01mm
Precision: ±0.01mm
7-15 Days Fast Shipping
7-15 Days Fast Shipping
Quality
Advantages
No Knife Marks
No Knife Marks
No Scratches
No Scratches
No Blemishes
No Blemishes
No Color Difference
No Color Difference
What Is the Difference Between 3-Axis and 4-Axis CNC Machining?

In 3-axis CNC machining, the tool moves along straight X, Y, and Z axes. In 4-axis machining, a rotary A-axis is added, allowing the workpiece to rotate. This enables the machining of complex features on multiple sides without re-fixturing.

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What file formats do you accept for CNC machining?

We accept STEP(.stp), IGES(.igs), SolidWorks(.sldprt), Parasolid(.x_t), and STL files. For the most accurate quotes, STEP is the preferred format.

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What Is the Typical Surface Roughness for 3-Axis Machined Parts?

Standard machined surface roughness is 125 Ra (3.2 µm); finish machining achieves 63 Ra (1.6 µm). Post-processing such as sandblasting or polishing can further improve surface quality.

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Do You Offer 3-Axis CNC Machining for Mass Production?

Yes. We specialize in mass production with a 100-piece MOQ and can handle batches of 100,000+ units. Volume-based tiered discounts apply.

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What Are the Advantages of 4-Axis Machining Over 3-Axis?

4-axis machining adds rotational capability, allowing features on multiple faces to be machined in a single setup. This reduces clamping time, improves accuracy between faces, and enables the production of cylindrical profiles and continuous spiral geometries.

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What Types of Parts Are Best Suited for 4-Axis Machining?

Parts requiring features on multiple faces, cylindrical surfaces, cam profiles, or helical geometries—and any part where continuous rotation is required during cutting—are perfectly suited for 4-axis machining.

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Can 4-Axis CNC Machining Produce Threads?

Yes, we produce internal and external threads using thread milling or 4-axis spiral interpolation. Tapped holes in standard thread specifications are also available.

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Is 4-axis machining more expensive than 3-axis machining?

Although the hourly machine rate is slightly higher, 4-axis machining typically reduces total costs by minimizing the number of setups. For complex multi-sided parts, 4-axis machining is often more cost-effective than multiple 3-axis setups.

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What Is the Difference Between 5-Axis Simultaneous and 5-Axis Positioning (3+2) Machining?

5-axis simultaneous motion means all five axes move during cutting, enabling complex 3D contour machining. 5-axis positioning (3+2) locks rotary axes at specific angles, then uses standard 3-axis movement. Continuous 5-axis suits complex profiles; positioning 5-axis is better for multi-face prismatic parts.

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Which File Formats Are Accepted for 5-Axis Machining?

We accept STEP, IGES, SolidWorks, Parasolid, and STL files. For 5-axis projects, STEP format is strongly recommended to preserve complete surface geometry and achieve optimal toolpath generation.

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Send Us Your Drawing — We Handle the Rest

Send your STEP / DWG / PDF drawing and get a detailed quote with free DFM analysis and process recommendations within 2 hours. No minimum order — from 1 piece.

Live inquiries
Michael · GermanyNeed 500 aluminum brackets, please quote
Sophie · FranceLead time for CNC turned stainless shafts?
David · USANeed 1000 injection molded ABS housings
Emma · UKCan you machine 5-axis titanium parts?